(2) A representative of the Member concerned, the Secretary-General or the principal executive officer of the appropriate specialized agency, as the case may be, shall have the right to appear in any such proceedings on behalf of the person against whom they are instituted;
(3) Persons who are entitled to diplomatic privileges and immunities under Section 15 or under the General Convention shall not be required to leave the United States otherwise than in accordance with the customary procedure applicable to diplomatic envoys accredited to the United States.
(c) This section does not prevent the requirement of reasonable evidence to establish that persons claiming the rights granted by Section 11 come within the classes described in that section, or the reasonable application of quarantine and public health regulations.
(d) Except as provided above in this section and in the General Convention, the United States retains full control and authority over the entry of persons or property into the territory of the United States and the conditions under which persons may remain or reside there.
(e) The Secretary-General shall, at the request of the appropriate American authorities, enter into discussions with such authorities, with a view to making arrangements for registering the arrival and departure of persons who have been granted visas valid only for transit to and from the headquarters district and sojourn therein and in its immediate vicinity.
(f) The United Nations shall, subject to the foregoing provisions of this section, have the exclusive right to authorize or prohibit entry of persons and property into the headquarters district and to prescribe the conditions under which persons may remain or reside there.
Section 14
The Secretary-General and the appropriate American authorities shall, at the request of either of them, consult, as to methods of facilitating entrance into the United States, and the use of available means of transportation, by persons coming from abroad who wish to visit the headquarters district and do not enjoy the rights referred to in this Article.
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